Color-Redshift Relations and Photometric Redshift Estimations of Quasars in Large Sky Surveys

@article{Wu2004ColorRedshiftRA,
  title={Color-Redshift Relations and Photometric Redshift Estimations of Quasars in Large Sky Surveys},
  author={Xue-Bing Wu and Wei Zhang and Xu Zhou},
  journal={Chinese Journal of Astronomy and Astrophysics},
  year={2004},
  volume={4},
  pages={17-27}
}
With a recently constructed composite quasar spectrum and the ?2 minimization technique, we describe a general method for estimating the photometric redshifts of a large sample of quasars by deriving theoretical color-redshift relations and comparing the theoretical colors with the observed ones. We estimated the photometric redshifts from the 5-band SDSS photometric data of 18678 quasars in the first major data release of SDSS and compared them with their spectroscopic redshifts. The… Expand

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  • F. Duan, Ping Guo
  • Physics, Engineering
  • International Symposium on Multispectral Image Processing and Pattern Recognition
  • 2007
The rapid development of the astronomical observation has led to many large sky surveys such as SDSS, 2DF, LAMOST etc. Because of the sheer size of these surveys, it becomes urgent to develop methodsExpand
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